the WWF Shotgun Saturday Night show as Discovery, Ludxor, Super Nova and Venum defeated Abismo Negro, El Mosco, Histeria and Maniaco. On June 15, 1997 Maniaco, Histeria and Mosco de la Merced appeared at Triplemanía V-B, defeating the team of Las Chivas Rayadas and Venum. Los Vipers In August, 1997 Cibernético formed a new "Super Rúdo" group called Los Vipers a group that absorbed most of the Los Rudos de la Galaxia members (Maniaco, Histeria, Abismo Negro, Mosco de la Merced) as well as Psicosis II. A few weeks after Los Vipers was born Histeria was replaced by a new Histeria and later on Mosco de la Merced would be replaced by Mosco de la Merced II. On August 23, 1998 Maniaco, Psicosis II, Histeria, and Mosco de la Merced II teamed up to participate in a tournament for the vacant Mexican National Atómicos Championship, representing Los Vipers. Los Vipers won the tournament by defeating Los Payasos (Coco Amarillo, Coco Azul, Coco Negro and Coco Rojo) in the finals to win the Atómicos title. Over the following months Los Vipers began a storyline feud with another group called Los Vatos Locos, which at the time consisted of Charly Manson, May Flowers, Nygma and Picudo. On February 14, 1999 Los Vatos Locos defeated Los Vipers to win the Atómicos championship. Los Vipers won the title a second time on September 17, 1999 when they defeated Los Junior Atómicos (Blue Demon, Jr., La Parka, Jr., Mascara Sagrada, Jr. and Perro Aguayo, Jr.). Los Vatos Locos managed to end Los Vipers second reign only three months later as they defeated Psicosis and partners on the undercard of the 1999 Guerra de Titanes show. Los Vipers regained the Atómicos title on April 15, 2000 effectively ending the storyline with Los Vatos Locos. Los Vipers reigned as Atómicos champions for over a year, until they were surprisingly upset by a little known group called Los Regio Guapos (Hator, Monje Negro, Jr., Potro, Jr. and Tigre Universitario) on August 19, 2001. Los Regio Guapos only held the title for under two months before Los Vipers regained the title and began their fourth reign with the Atómicos title. Their fourth reign also turned out to be the last reign for Los Vipers, ending on November 23, 2001 as a new version of Los Vatos Locos (Espiritu, Nygma, Picudo and Silver Cat) defeated them in one of the